Carbureter.



E. J. PROEHL.

GARBDRETER.

. n ,APELIOATION FILED SEPT. 2B, 1910. 979970., Patented De@.27,1910.

50 2 SHEETS-SHEET 1. Y 55 5f A E. J. PROEHL.

CARBURETER.

APPLICATION FILED SEPT. 28, 1910.

Patented Dec. 27', 1910.

Z T E E H H T E E E D 2 INVENTOR waz'tfrnawl.

momma EQE@ EDWARD J. PROKEHL, OF NEW YORK, N. Y.

CARBURETER.

Speccation of Letters Patent.

.Patented Dec. 27,19Mh

Application filed September 28, 1910.,y Serial N o. 584,182.

To all whom it may concern:

Be it known that I, EDWARD J. Pnomii., a citizen of the United States,residing at New York, in the county of New York and State of New York,have invented certain new and useful Improvements in Carbureteis; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as vwill enable others skilled in theart to which it appertains to make and use the saine, reference beinghad to tlieaccompanying drawings, and to characters of reference markedthereon, which form a part of this specification.

This invention has reference, generally, to improvements in carburetersfor internal combustion engines; and, the presentinvention has for itsprincipal object to provide a novel and simply' constructed apparatus ordevice in which a perfect admixture of the vgasolene with'air isobtained to produce the explosive gas which is to be passed into thecylinders of the internal combustion engine.

The invention has for its further object to provide a means foreiciently atomizing' the gasolene so that the same may lie-quickly andthoroughly mixed with theinrushing air taken into the mixing chamber ofthe carbureter.

A further object of the present invention' means for feeding thegasolene into the mixing chamber of the carburetor, the parts of whichLare reduced to the greatest simplicit in construction, to produce notonly `an e ficient gasolene feed, but also a gasolene feed of muchhigher eiiicie'ncy than that of'the old styles of gasolenefeedsmechanism.

- Other objects of this invention'not at this time more particularlyenumerated,.will be clearly evident from the following detailed4description of the same.

With the various objcctsof the present in- Ventron 1n View, the saidinvention consists, primarily, in the novel-carbui'eter for iii-Alternal combustion engines. hereinafter set forth; and, furthermore,thisinvention consists in the novel arrangements and combina tions ofthe Various devices and parts, as well as in the details of theconstruction of the same, all of which will be presently more fullydescribed, and then finally embodied in the clauses of the claim whichare appended t0 and which form an essential partv of this specification.

The invention is clearly illustrated in the accompanying drawings, inwhich :-4

Figure 1 is a transverse Vertical section-of a carbureter, embodying theprinciples of the present invention, said section being i taken on linel-1 in'Fig. 2, looking in the direction of the arrow ai; Fig. 2 is aVertical section taken on line 2 2 in said Fig. 3, looking in thedirection of the arrow y; F ig. 3 is a detail View of the air-inlet endof the mixing chamber of said carbureter, the same being shown with thethrottle-lever so adjusted that the throttle opens the passage or inletfor the entrance of air into said mixing chamber; Fig. 4 is a viewsimilar to' that shownin Fig. 3, except that here the throttle isadjusted so as toclose the air-inlet leading cal section taken on line 5-5 inl said Fig. 2, looking in the direction of the arrow with ycertain! parts of the-mechanism omitted, the same illustrating thethrottle-member in its opened position, which permits an influx ofgasolene into the mixin ychamber as the air .passes'th'ereintog and, *i6 is a view similar ,to that shown in Figay 5, with the exception thatthe throttle-member is shown in its closed relation, thus closing thegasolene feed mechanism simultaneously with the closing of the air-inletof said mixing 'chamber.

Similarcharacters of reference are employed in all of the herein-abovedescribed views to-indicate` corresponding parts. Y, Referring now tothe said drawings, the referencecharacter 1 indicates the complete formof carbureter made according to and embodyin lthe principlesiofthe-'present invention, t esaine com rising a shell-like body 2providing a gaso ene receivin chamber or reservoir 3. Said shell-likeody is formed with a suitable casing, as (l, adapted vto the mixingchamber; Fig. 5 is a detail vertito contain an inlet-valve, said casinghaving an inlet end provided with the gasolenepassage 6. ik port orpassage? 1n the wal-'l of-said shelllike body 2 connects the interior ofsaid casing 4 with the interior of said reservoir 3. Arranged withinsaid casing 4 is a valve-member, `comprising a ball or otherv suitablyshaped valve 8 mounted upon a valve-stem-Qawh-ieh serves, when operated,to open and close the 'gasolene-passage 6 of said valve-casing. rlhesaid valve-member '8 is automatically operated by the rise and fall of afloat 10, which is arranged within said reservoir `3, said float 10communicating its movement by means of a suitable leverconnection 11 tosaid valve-stem 9, in themanner to be clearly understood from aninspection ot lFig. 1 of the drawings. Connected with saidV shell-likebody 2, and preferably integrally formed therewith, is a cylindricalbody `or member '12, the same providing a suitable mixing chamber 13.rlhe forward end of the said cylindrical body or member 12 is providedwith an annular flange 14. l

.The reference-character 15 indicates a face-plate which is provided inits upper half with asemi-circular opening 16,wh1ch forms an airinletleading to said mixinglsimilar 4gasolene passage 21 chamber 13.Arranged-'between the said flange 14 of said cylindrical body'or member12 and said face-plate 15 are one or more atomizer-rings 17, the samebeingprovided upon their side-faces with circular grooves or channels18, suitably disposed in the upper portion or half oit' the saidatomizer ring or-rings. Extending from said circullar grooves 18 to theinner edges of the said atomizer-ring are a plurality' of radially dis'-posed grooves or ducts 19 which; are of very small cross-sectional area,and thereby tend to thoroughly break up into small particles thegasolene fed from said Ysemi-circular groove 18 when the same flowsthrough said grooves or ducts 19, and. is delivered all around theinterior edges of said atomiaer ring 17, so that the said gasolene maybe quickly and easily taken-up and intermixed with the air as it rushesthrough said inlet 16 into the mixing chamber 13. SaidA atomizer-ring 17is further provided wthfa gasolene passage 20 which registers withextending through the wall of said shell-like body 2, whereby thegasolene eontainedin the reservoir 3 may be delivered to saidsemi-circular grooves 18, through thesaid passages 20 and 21, and thesaid transverse passage 22. The said face-plate 15 'and -atomizer ringv17 are joined or connected; with said annular Flange 14 by means ofsuitably disposed bolts and nuts 23, passing' through` the ears or lugs24 which are connected with said respective members. r1he saidfaceplate'l is further provided with a centrally disposed perforatedhub-portion 25 in which is mounted, rotatably', a spindle 26, saidspindle beingffrmed with a' shoulder '27.

'l`he outer end of said spindle is formed with a screw-threaded shank28, upon which is secured, by means of the nut and washer 29, alever'orarm 30 adapted to rotate said spindle. 'lthe 'inner end of said spindle2G is provided with asquared shank 31 upon which is mounted the hub 32of a throttlemember 33,. so that said throttle-member will rotate uponthe turning of saidspindle 2G. Connected with said squaredshank 31 is asmaller screw-threaded shank 34 adapted to receive thenutfand washer 35which retains the throttle-member 33 in its operative vconnection v.withsaid spindle 26'-A Saidthrottle-member 33 isjcylindrical in form andlits snugly Within the opening of said cylindrical body or portion 12,so as toturn therein. Said ythrottle-menfib r 33 is further provided atone end with asemi-circular wall 36, which, when the throttle-member 33is properly manipulated, tends to close the air-inlet 16- against 'thepassage ot air int-o the mixing chamber 13. Said throttlc-member 33 isfurther provided in co'- incident position and relation to saidwallmember 36 with a semi-cylindrical portion 37, which operatingVsimultaneously withv4 sald wall-member 36, upon a proper manipulationof said throttle-member 33, tendsto close against the passageof'gasolene the Said grooves or ducts 19, when the said airinlet 16 isclosed.V It will also be apparentthaftinay partial closing of th'eair-inlet 16 byid described, tends to simultaneously close an equalportionof the gasolene feeding grooves or ducts 19 of said atomizer ring17. Said cylindrical body-portion 12 is further pro-` vided with a boss38, in turnprovided with a screw-threaded opening `39, and arranged insaid screw-threaded opening 39 is an auxiliary air-supply valve, saidvalve comprising a housing 40 provided with air-ports 41 leading intolan air-passage 42, and a centrally disposeddash-pot 43. Saiddash-potthrough the opening 45 in said dash-pet 43,.

said stem being formed-upon its upper end with screw-threads 50.-Arranged upon the screw-threaded portion of said valve-stem is anadjusting nutl for adjusting the tenid throttle-member 33 and its ust.

sionof a coiled spring 52 arranged between the sameand the housing 40. Alock-nut 53 is also arranged upon said screw-threaded valve-stem so asto lock said-adjusting nut 1n its adpisted position. p

Thev operation of the various devices hereinabove described when thesaid carbureter is carrying out its :function of causing the properadmixture of air and gasolene to provide an explosive gas is asfolloajs1-The gasolene from the reservoir 3, being always maintained ata proper level by the opera` tion of said float 10 and saidinlet-vz'llve controlled thereby, passes or rises through the passagelandlpassages .20 and into the circular grooves 18 of said atomizer rin g17. The suction caused by the pistons of tli'e iriternal combustionengine operating in the mixing chamber 18 sucks the gasolene into saidgrooves 18, and through the small radially disposed grooves or ductslfl,so that thc same is carried into and inteimixe's with the air passingthrough the inlet 16. /To de crease the .amount ot' gas formed by 'theadmixture of gasolene with air, the throttlemember 33-may be operated toclose, to the desired degree, the air-inlet 16 and simultaneously shutolf the communication With the mixing` chamber 13 of a proportionatenumber of the said radially disposed grooves or ducts 1t). In thismanner, the strength and quantity `.of the mixture of air and gasolenemay be readily controlled by the single operation of saidthrottle-member 33, as will be` clearly understood. It will thus beseen, that not only is the mechanism I have devised very simple in itsconstruction, but it does in fact eliminate the need or use of a largernumber of movable parts which tend to get out of` order; and,furthermore, the i operation of the device is reduced to the greatestdegree of simplicity, and the control of the gas, as it is deliveredtothe cyl.

inders of the internal combustion engine, is consequently obtained withease.

Referring now more particularly to the auxiliary air-valve, theoperation of the same, briefly, is as follows: At high speed the suctioncreated by thelo'peration of thev pistons in the cylinders of theinternal com bustion engine pulls open the valve-disk 48 so as to allowthe air to pass through the ports 41 and through the air-passage 42 intothe mixing chamber .13. In order to prevent ,the too rapid action of theopeningv and closing means of said valve-disk 4S, the.

piston 47 creates a suction in the dash-pot 43, upon the opening ofsaidoval've-disk 48, which retards the movement of .said valvedisk 48long eno-ugh to permit thc sucking in of air through the vent 4G intothe cylindrical chamber 44 of the dashepot. lVlien the engine slows downhoivever. the spring 52 tends to close the valve-disk 48; but thisclosing action cannotbe rapid because it is checked by the pressure ofthe piston 47 in driving or expelling the airfrom said-cylinvdricalchamber 44 through the vent 46 of" scope of the present' invention asset forth in, p

the foregoing specification, and as deined'in the claims which areappended toI the said specification. Hence, I do not limit my inventionto the /xac't arrangements andcor.

binations offrhe devices and"l parts as die- ,l

scribed in the said specification, nor do I conne inyselfto'the exactdetails of the construction of the said parts as illustrated in theaccompanying drawings.

-1. In a carbureter, the combination Wit-h a cylindrical body providinga mixing chamber, of an atomizer ring provided on its faces withgasolene-receiving grooves and a plurality of radially disposedgroovesleading to the interior edges of said 'atomizer rin foi-tgl 2. Ina carbureter, the combination with aA cylindrical bodyvfprovidingv a',mixing chamber, of an atomizer ring providedm its faces Withgasolene-receiving grooves and a plurality of radially disposed groovesor' ducts leading from said gasolene-recei'ving grooves to the interioredges of said atomizer ring, a throttle-member mounted to rotate Withinsaid cylindrical body, a semi-cylindrical portion connected With saidthrottle-member adapted to be brought into Whole or partial closingrelation with the outlets of said radially disposed grooves or "ducts ofsaid atomizer ring upon the rotation of said throttlefmember,substantially as and for the purpesesset forth.

3;'In a' carbureter, the combination with a cylindrical body providing amixing substantiallyV as and for the purposes set 'les chamber,- ofan-'atomizer ring provided on its faces with gasolene-receivin'g groovesand 1 a pluralit of radially disposed grooves or ducts `iea ing fromsaid gasolenereceiving grooves to the interior edges of said atomizerring, a throttle-member mounted 4torotate within said cylindrical body,a semicylindrical throttle-mem er adapted to be brought into Whole orpartial closing relation with the outlets of said radially disposedgrooves` or ducts of said atomizer ringupon the rota.- tion of saidthrottle-member, and means for supplying or feeding gasolene to saidgasolene-receiving grooves of said atomizer ring portion 'connectedvwith lsaid ISO substantially as and `tor the purposes set forth.

ls in a carburetor, the combination Wit-h a cylindrical body providing amixing charnber, of an atomizer ring provided on its faces withvgasolenereceiving grooves and a plurality of radially disposed groovesor ducts leading from said gasolene-receiving grooves to the interioredges of said atomizer ring, a face-plate provided With'a semi-circularairinlet adapted to be arranged in connection ber, of an atomizer ringprovided on its faces with gasolene-receiving grooves and a plurality ofradially' disposed grooves or ducts leading from said gasolene-receivinggrooves to the interior edges of said atomizer ring, a face-plateprovided with a semi-circular air-inlet adapted to be arranged inconnection with said atomizer ring and said bylindrical body, athrottle-member 1nounted so as to rotate Withinsaid cylindrical body,and adapted to be manipulated to simultaneously closevin Whole or inpart both said airinlet and said radially disposed grooves or ducts ofsaid atomizer ring, and means for supplying or feeding gasolene to said.gasolenelreceiving grooves ot' said atomizer ring, substantially as andfor the purposes set forth.

(3. 1n a carbureter, the combination with a cylindrical body providingVa mixing chamber, of an atomizer ring provided on its .faces withgasolene-receiving grooves and a plurality of radially disposed groovesor' ducts leading from said gasolene-receiving grooves to the interioredges ot said atoinizer ring, a face-plate provided with a semi-circularair-inlet adapted to be arranged in connection with said atomizer ringand saidcylindrical body, a throttle-member mounted 'so as to. rotateWithin said cylindrical body, a semi-cylindrical portion connected Withsaid throttle-member adapted to be brought into -ivhole or partialclosing relation With t the outlets of said radially disposed grooves orducts oit said atoniiaer ring upon thehrotation of said throttleanember,and a semicircular Wall-portion connected with one end of saidthrottle-member adapted to be brought into registration with saidair-inlet` of the face-plate so as to close in whole or in part saidair-inlet simultaneously With the closing of said radially disposedgrooves or ducts of said atomizerring, substantially as and for thepurposes set forth.

orare@ 7.. lin a' oarbureter, the combination 'with a cylindrical bodyproviding a mixing chamber, of an atomizer ring provided on its facesWith gasolene-receiving grooves and a plurality of radially disposedgrooves or ducts leading from said gasolene-receiving grooves' to theinterior edges of said atomizer ring, a faceplate provided With asemi-'cin cular air-inlet adapted to be arranged in connection with saidatoniizer ring and said cylindrical body, athrottle-inernber mounted soas to rotate Within said cylindrical body and adapted to simultaneouslyclose in Whole 'or in part both said air-inlet and said radiallydisposed grooves or ducts of said atomizer ring, and an auxiliary airsupply-valve connected With-said cylindrical body, substantially as andfor the purposes set forth.

8. In a carburetor, the combination with a cylindrical body providing amixing chams ber, oi an atomizer ring provided on its faces withgasolene-reoeiving grooves and a plurality of radially disposed groovesor ducts leading from said gasolene-reoeiving grooves tothe interioredges ot said atomizer ring, a` face-plate provided with a se1nicircularair-.inlet adapted to be arranged .in connection With said atomizer ringand said cylindrical body, a throttle-member mounted so as to rotateWithin said cylindrical body and adapted to simultaneously close inWhole or in part. both said air-inlet and said radially disposed groovesor ducts of said atomizer ring, an auxiliary air supply-valve connectedwith said cylindrical body, comprising a housing provided with air-portsand an airpassage, a dash-pot connected therewith provided With an airvent, a valve-disk nor mally closing said air-passage, a piston connected with said valve-disk and slidably arranged- Within saiddaslrpot, a valve-stein extending from said piston, an adjusting nutarranged upon said valve-stem and a spring yarranged betweensaid'adjusting nut and saidhousing, substantially as and for thepurposes set forth.

9. In a carburetor, the combination With a cylindrical body providing amixing clmianr ber, ot an atomizer ring provided on its faces withUasolene-'receiving grooves and a plurality ol: radially disposedgrooves or ducts leading :trom said gasolene-receiving -grooves totheinterior edges of said ously close in Whole or in partxboth` said air-'inlet and said radially disposed grooves or duets of said atomizerring, an auxiliary air supply-valveconnected` withI said cylindricalbody, comprising alousng provided -vvitii air-ports and an air-passage.a daslipot connected therewith provided with 1an air vent, izer ring,substantially as land the pur.- a Valve-disk normally closing saidair-pasposes set forth. Y sage, a piston connected with said valve- Intestimony, that I claim the invention ldisk and slidably arranged withinsaid dashset forth above I have hereunto set my hand 5 pot, a valve-stemextending from said pisthis 26th day of September 1910.

ton, 'an adjusting nut arranged upon said valve-stem and a springarranged between EDWARD J PROEHL said adjusting nut and said housing,and Witnesses:vv I means for supplying or feeding gasolene to GEORGE D.RICHARDS," 10 said gasolene-receiving groovesof said atom- ADoLPHHANSEN.

